dear pacois/mr.tools
any option to make auto scaling in subwindow chart as per the movement of each bar on the indicator

i need to get line equally to half above and below zero level forback bars length 5bars max.

see snap
the scaling calcaution basically
uper zone scale value on current value half
lower sone scale value on current value half

an horizontal line marked above and below zero to be marked upto 5 back bars.
note each zone value is differeet nd calculated seperately